Overview
The ISO7760-Q1, specifically the ISO7760QDBQRQ1, is a high-performance, six-channel digital isolator produced by Texas Instruments. This device is designed to provide robust isolation and high electromagnetic immunity, making it suitable for demanding applications such as automotive systems. The ISO7760-Q1 family is AEC-Q100 qualified, ensuring it meets stringent automotive standards with a temperature range of –40°C to +125°C. The device features a double capacitive silicon dioxide (SiO2) insulation barrier, offering up to 5000 VRMS isolation rating for the DW package and 3000 VRMS for the DBQ package, as per UL 1577. It is available in 16-pin SOIC and SSOP packages, enhancing its versatility in various system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SSOP (DBQ-16) | |
| No. of Channels | 6 | |
| No. of Terminals | 16 | |
| Minimum Supply Voltage | 2.25 | V |
| Maximum Supply Voltage | 5.5 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Data Rate | 100 Mbps | |
| Isolation Rating (DBQ Package) | 3000 VRMS | |
| Isolation Rating (DW Package) | 5000 VRMS | |
| Surge Capability | Up to 12.8 kV | |
| Common Mode Transient Immunity (CMTI) | ±100 kV/µs (Typical) | |
| Propagation Delay | 11 ns (Typical at 5V) | |
| ESD Protection | ±8 kV IEC 61000-4-2 Contact Discharge |
Key Features
- Qualified for automotive applications with AEC-Q100 certification and a temperature range of –40°C to +125°C.
- High-performance, six-channel digital isolator with up to 100 Mbps data rate.
- Robust isolation barrier with up to 5000 VRMS isolation rating (DW package) and 3000 VRMS (DBQ package).
- Up to 12.8 kV surge capability and ±100 kV/µs typical CMTI.
- Wide supply range: 2.25V to 5.5V with level translation capability.
- Low power consumption: typical 1.4 mA per channel at 1 Mbps.
- Low propagation delay: 11 ns typical at 5V.
- Robust Electromagnetic Compatibility (EMC) with system-level ESD, EFT, and surge immunity.
- Default output high (ISO776x) and low (ISO776xF) options.
- Safety-related certifications including UL 1577, VDE, CSA, TUV, and CQC.
Applications
- Hybrid, electric, and power train systems (EV/HEV): battery management systems (BMS), on-board chargers, traction inverters, DC/DC converters, and starter/generators.
- Automotive systems requiring high isolation and electromagnetic immunity.
- Data buses such as CAN and LIN, where noise currents need to be isolated from sensitive circuitry.
- Industrial control systems and medical devices that require robust isolation and low emissions.
Q & A
- What is the primary function of the ISO7760-Q1 digital isolator?
The ISO7760-Q1 is a high-performance, six-channel digital isolator designed to isolate CMOS or LVCMOS digital I/Os while providing robust electromagnetic immunity and low emissions.
- What are the key certifications for the ISO7760-Q1?
The device is AEC-Q100 qualified, and it also holds certifications from UL 1577, VDE, CSA, TUV, and CQC.
- What is the operating temperature range of the ISO7760-Q1?
The operating temperature range is –40°C to +125°C.
- What are the package options for the ISO7760-Q1?
The device is available in 16-pin SOIC (DW-16) and SSOP (DBQ-16) packages.
- What is the maximum data rate supported by the ISO7760-Q1?
The device supports up to 100 Mbps data rate.
- What is the isolation rating for the DBQ package?
The isolation rating for the DBQ package is 3000 VRMS.
- What is the typical propagation delay of the ISO7760-Q1 at 5V?
The typical propagation delay is 11 ns at 5V.
- Does the ISO7760-Q1 have ESD protection?
Yes, it offers ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- What are some common applications for the ISO7760-Q1?
Common applications include hybrid and electric vehicle systems, battery management systems, on-board chargers, and industrial control systems.
- How does the ISO7760-Q1 enhance electromagnetic compatibility?
The device enhances EMC through system-level ESD, EFT, and surge immunity, along with low emissions.
